參數(shù)資料
型號(hào): MC9328MX1VM20R2
廠商: Freescale Semiconductor
文件頁(yè)數(shù): 60/100頁(yè)
文件大小: 0K
描述: IC MCU I.MX 200MHZ 256-MAPBGA
標(biāo)準(zhǔn)包裝: 1,000
系列: i.MX1
核心處理器: ARM9
芯體尺寸: 32-位
速度: 200MHz
連通性: EBI/EMI,I²C,MMC,智能卡,SPI,SSI,UART/USART,USB
外圍設(shè)備: DMA,I²S,LCD,POR,PWM,WDT
輸入/輸出數(shù): 110
程序存儲(chǔ)器類型: ROMless
電壓 - 電源 (Vcc/Vdd): 1.7 V ~ 3.3 V
振蕩器型: 外部
工作溫度: 0°C ~ 70°C
封裝/外殼: 256-MAPBGA
包裝: 帶卷 (TR)
Functional Description and Application Information
MC9328MX1 Technical Data, Rev. 7
62
Freescale Semiconductor
4.6.4
Gain Error Calculations
Gain error calculations are made using the information in this section.
Figure 36. Gain Error Calculations
Assuming the offset remains unchanged, the mapping is rotated around y-intercept to determine the
maximum gain allowed. This occurs when the sample at 1800mV has just reached the ceiling of the 16-bit
range, 65535.
Maximum Offset Gmax,
Gmax
= (65535 - C0) / 1800
= (65535 - 32767) / 1800
= 18.20
Gain Error Gr,
Gr
= (Gmax - G0) / G0 * 100%
= (18.20 - 13.65) / 13.65 * 100%
= 33%
4.7
Bluetooth Accelerator
CAUTION
On-chip accelerator hardware is not supported by software. An external
Bluetooth chip interfaced to a UART is recommended.
The Bluetooth Accelerator (BTA) radio interface supports the Wireless RF Transceiver, MC13180 using
an SPI interface. This section provides the data bus timing diagrams and SPI interface timing diagrams
shown in Figure 37 and Figure 38, and the associated parameters shown in Table 22 and Table 23.
2400
1800
Smax
65535
C0
G0
Sample
Vi
- 2400
Gmax
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